16312317863 has 2 divisors, whose sum is σ = 16312317864. Its totient is φ = 16312317862.

The previous prime is 16312317859. The next prime is 16312317869. The reversal of 16312317863 is 36871321361.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16312317863 - 2² = 16312317859 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16312317863.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16312317869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8156158931 + 8156158932.

It is an arithmetic number, because the mean of its divisors is an integer number (8156158932).

Almost surely, 2^16312317863 is an apocalyptic number.

16312317863 is a deficient number, since it is larger than the sum of its proper divisors (1).

16312317863 is an equidigital number, since it uses as much as digits as its factorization.

16312317863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 41.

The spelling of 16312317863 in words is "sixteen billion, three hundred twelve million, three hundred seventeen thousand, eight hundred sixty-three".